Properties of Metals

Properties of Metals
Generally the metals have the following properties.
a) Physical properties
b) Mechanical properties
c) Chemical properties
a) Physical properties:
The physical properties of metal include weight, colour, thermal conductivity, density, fusibility, magnetization, melting point.
b) Mechanical properties:



1) Strength: It is the ability of a material to resist the externally applied forces without breaking or yielding.

2) Stiffness: It is the ability of a material to resist deformation under stress.

3) Elasticity: It is the property of a material to regain its original shape after deformation when the external loads are removed. Steel is more elastic than rubber.

4) Plasticity: It is property of a material which retains the deformation produced under load permanently.

5) Ductility: The property of a material which can be drawn into wires without breaking.

6) Malleability: The property of a material which can be rolled or hammered into thin sheets.

7) Brittleness: It is the property of material which can be broken with little permanent distortion.

8) Toughness: It is the property of material to resist fracture due to high impact load like hammer blow.

9) Hardness: It is the property of metal to cut another metal.

10) Machinability: It is the property of a material which can be machined easily.




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